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Unit 6: Diversity & Races
diversity & races
40
Agriculture
Undergraduate 2
04/21/2016

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Cards

Term
How did africanized honeybees come about?
Definition
hybridization between african honeybee subspecies and several europeean subspecies
Term
What is the difference between a bee race and a strain?
Definition
race: synonym of subspecies
strain: genotype within a subspecies
Term
Where did honeybees originate?
Definition
Asia or Africa (disputed)
Term
Can different races / subspecies mate?
Definition
yes
Term
What is an ecotype?
Definition
another term for race, often refers to race that evolved in a specific geographic location
Term
How many subspecies of A Mellifera are there? How many are in NA?
Definition
40

4
Term
What subspecies (or races) are found in north america?
Definition
German
Carnolian
Caucasian
Italian
Term
What was the first honey bee introduced to north america?
Definition
Apis mellifera mellifera

aka German bees
Term
What are the advantages of Apis mellifera mellifera? Disadvantages?
Definition
Advantages
-good honeyproducers
-overwinter well

Disadvantages
-highly defensive
-very susceptible to foulbrood
Term
what colour are apis mellifera mellifera
Definition
black
Term
What colour are apis mellifera carnica?
Definition
grey
Term
Proper name for carnolian bees
Definition
apis mellifera carnica
Term
Where did apis mellifera carnica originate?
Definition
the Balkans
Term
Advantages of apis mellifera carnica? Disadvantages?
Definition
Advantages
-gentle
-overwinter well
-efficient use of food
-disease resistance
-rapid growth in spring

Disadvantages
-high tendency to swarm
Term
Proper name for caucasian bees
Definition
Apis mellifera caucasica
Term
What colour are apis mellifera caucasica?
Definition
dark with grey body hairs
Term
Where did apis mellifera caucasica originate?
Definition
Russia, black sea
Term
Advantages of apis mellifera caucasica? Disadvantages?
Definition
Advantages
-calm on the comb
-overwinter well
-efficient use of food reserves

Disadvantages
-robbing behaviour
-excessive use of propolis
Term
What is the proper name for italian bees?
Definition
apis mellifera ligustica
Term
What colour are apis mellifera ligustica?
Definition
yellow-brown with black stripes
Term
What is the most common honeybee race in north america?
Definition
apis mellifera ligustica
Term
Advantages of apis mellifera ligustica? Disadvantages?
Definition
Advantages
-good honey production
-disease resistance
-good temperament
-low tendency to swarm
-overwinter well

Disadvantages
-inefficient use of food reserves (maintain populated colonies year-round)
-robbing behaviour
Term
Is hygienic behaviour something that is bred into races or strains?
Definition
strains
Term
What race of bees is primarily associated with africanization of honeybees?
Definition
apis mellifera scutellata
Term
Why are africanized honeybees not desireable?
Definition
-highly defensive
-migratory behaviour
-swarming tendency / absconding
Term
What environmental conditions led to the evolution of apis mellifera scutellata and its' traits?
Definition
sporadic rains
long dearth periods
open forest
dry hot environment
high levels of predation
Term
True or False

Apis mellifera scutellata store large amounts of honey
Definition
false

tropical conditions means they don't have to build up stores
Term
Where did africanization of honeybees first occur?
Definition
Brazil
Term
Are africanized honeybees smaller or larger than europeean bees?
Definition
smaller
Term
Which type of colony will grow faster, africanized or europeean honeybees?
Definition
africanized

queen can lay up to 3000 eggs per day
Term
Africanized honeybees may swarm up to __ times per year
Definition
8
Term
Broodnest temperature is kept between ___ and ___ degrees
Definition
32 - 35
Term
How does foraging behaviour of africanized bees compare to europeean?
Definition
begin foraging at 12-14 days post-emergence
-make many trips per day

europeean not until 14-16d
-make fewer trips but stay out longer
Term
True or False

Europeean honey bees can store a larger volume of nectar in their crop than africanized bees
Definition
true
Term
Which are more disease-resistant, africanized or europeean honeybees?
Definition
african
Term
What is hygienic behaviour?
Definition
worker bees who are driven to detect and remove diseased/dead brood
Term
What is usurpation?
Definition
when a swarm of bees penetrate a hive and take over (africanized bees will often do this to europeean colonies)
Term
True or False

Number of hives in mexico has decreased since introduction of africanized bees
Definition
true
Term
How has death due to stinging been affected in mexico due to africanized honeybees?
Definition
greatly increased
Term
Can africanized honeybees be used for crop pollination?
Definition
yes but they get stressed more easily when transported
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